chore(backend): attach flyway to a copy of file from database folder

Following rohanprabhu/kotlin-dsl-gradle-jooq-plugin#23, we choose to copy files into buildDir before flywayMigrate operations. Thanks to that, we can use the same url between flyWay and JOOQ plugin.

Closes #88

backend/build.gradle.kts

@@ -1,10 +1,10 @@
-import com.gitlab.davinkevin.podcastserver.backend.build.databaseParameters
+import com.gitlab.davinkevin.podcastserver.backend.build.DatabaseParameters
 import com.rohanprabhu.gradle.plugins.kdjooq.*
 import org.gradle.internal.deprecation.DeprecatableConfiguration
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 import java.time.OffsetDateTime
 import java.time.format.DateTimeFormatter
-import com.gitlab.davinkevin.podcastserver.backend.build.*
+import java.nio.file.*
 
 plugins {
 	id("org.springframework.boot") version "2.3.1.RELEASE"
@@ -76,11 +76,17 @@ gitProperties {
 	dotGitDirectory = "${project.rootDir}/../.git"
 }
 
+tasks.register<Copy>("copyMigrations") {
+	from("${project.rootDir}/../database/migrations/")
+	include("*.sql")
+	into(db.sqlFiles)
+}
+
 flyway {
 	url = db.url
 	user = db.user
 	password = db.password
-	locations = db.sqlFiles.toTypedArray()
+	locations = arrayOf("filesystem:${db.sqlFiles}")
 }
 
 jooqGenerator {
@@ -89,6 +95,8 @@ jooqGenerator {
 
 	configuration("primary", project.sourceSets.getByName("main")) {
 
+		databaseSources = listOf(db.sqlFiles)
+
 		configuration = jooqCodegenConfiguration {
 			jdbc {
 				url = db.url
@@ -130,6 +138,9 @@ jooqGenerator {
 	}
 }
 
+project.tasks["flywayMigrate"].dependsOn("copyMigrations")
+project.tasks["jooq-codegen-primary"].dependsOn("flywayMigrate")
+
 tasks.withType<Test> {
 	useJUnitPlatform()
 	systemProperty("user.timezone", "UTC")
@@ -148,10 +159,6 @@ tasks.withType<KotlinCompile> {
 	}
 }
 
-@Suppress("PropertyName")
-val `jooq-codegen-primary` by project.tasks
-`jooq-codegen-primary`.dependsOn("flywayMigrate")
-
 jib {
 	val imageTags: Set<String>? by project.extra
 	val providedTag = project.findProperty("tag")?.toString()

backend/buildSrc/src/main/kotlin/DatabaseParameters.kt

@@ -6,9 +6,5 @@ data class DatabaseParameters(
         val url: String,
         val user: String,
         val password: String,
-        val sqlFiles: List<String> = listOf("filesystem:../database/migrations")
+        val sqlFiles: String = "/flyway/migrations/"
 )
-
-fun databaseParameters(project: Project): DatabaseParameters {
-    return project.extensions.extraProperties["databaseParameters"] as DatabaseParameters
-}

backend/gradle/profile-ci.gradle.kts

@@ -10,7 +10,8 @@ if (env.containsKey("POSTGRES_DB") && env.containsKey("POSTGRES_USER") && env.co
     val databaseParameters by extra(DatabaseParameters(
             url = "jdbc:postgresql://postgres:5432/${env["POSTGRES_DB"]}",
             user = env["POSTGRES_USER"]!!,
-            password = env["POSTGRES_PASSWORD"]!!
+            password = env["POSTGRES_PASSWORD"]!!,
+            sqlFiles = "$buildDir/flyway/migrations/"
     ))
 }
 

backend/gradle/profile-default.gradle.kts

@@ -1,5 +1,6 @@
 val databaseParameters by extra(com.gitlab.davinkevin.podcastserver.backend.build.DatabaseParameters(
         url = "jdbc:postgresql://postgres:5432/podcast-server",
         user = "podcast-server-user",
-        password = "nAAdo5wNs7WEF1UxUobpJDfS9Si62PHa"
+        password = "nAAdo5wNs7WEF1UxUobpJDfS9Si62PHa",
+        sqlFiles = "$buildDir/flyway/migrations/"
 ))

backend/gradle/profile-skaffold.gradle.kts

@@ -6,7 +6,8 @@ if (System.getenv("SKAFFOLD") != null || (skaffold?.toBoolean() == true)) {
     val databaseParameters by extra(DatabaseParameters(
             url = "jdbc:postgresql://postgres:${System.getenv("DATABASE_PORT")}/${System.getenv("DATABASE_NAME")}",
             user = System.getenv("DATABASE_USERNAME"),
-            password = System.getenv("DATABASE_PASSWORD")
+            password = System.getenv("DATABASE_PASSWORD"),
+            sqlFiles = "$buildDir/flyway/migrations/"
     ))
 }